Finding the Fourth Proportional to 101,967.30, 152,801.55 and 91,437.30

Step by Step Solution

1. Step 1: Write the proportion equation
   101,967.30 : 152,801.55 = 91,437.30 : x
2. Step 2: Convert to fraction form
   101,967.30/152,801.55 = 91,437.30/x
3. Step 3: Cross multiply
   101,967.30x = 152,801.55 × 91,437.30
4. Step 4: Simplify right side
   101,967.30x = 13,971,761,167.82
5. Step 5: Solve for x
   x = 13,971,761,167.82/101,967.30
6. Step 6: Final answer
   x = 137,021.98